SOLUTION: OK so say you had a quadratic sequence that represented pascales triangle so the first row would be 1 cube and the second row would be 4 cubes the third row would be 9 cubes and so
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-> SOLUTION: OK so say you had a quadratic sequence that represented pascales triangle so the first row would be 1 cube and the second row would be 4 cubes the third row would be 9 cubes and so
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Question 53970: OK so say you had a quadratic sequence that represented pascales triangle so the first row would be 1 cube and the second row would be 4 cubes the third row would be 9 cubes and so on there for the sequence being 1,4,9,16,25.... there for the eqasion would be tn= n^2. Then you would want to find the 100th row which would be 100^2 but the question is how many blocks would it take to build up to the 100th row so its the sum of the sequence or pyrimd up to t100. Now you could just add up all the terms in the sequence but i would like to know the equaion for finding the sum of this term, and how you would get that equasion. If you could e-mail me ASAP that wouls be greatly appreciated thanks for the help
FELICIA Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! There is a sum-of-squares formula.
1^2+2^2+3^2+ ... + n^2 = [n(n=1)(2n+1)]/6
Try it with n=100
Cheers,
Stan H.
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